Elmer e



E. E. MONROE.`

WINDoW SCREEN.

(No Model.)V

I UNITED STATES PATENT OFFICE.

ELMER E. MONROE, OF RICHMOND, INDIANA, ASSIGNOR OF ONE-HALE TO CORNELIUS RATLIFF, OF SAME PLACE.

WINDOW-SCREEN.

SPECIFICATION forming part of Letters Patent No. 577,690, dated February 23, 1897.

Application filed October 13, 1896. Serial No. 608,74'7. (No model.)

To all 'whom it may concern:

Be it known that I, ELMEE E. MONROE, residing at Richmond, in the county of Wayne and State of Indiana, have invented certain new and useful Improvements in Window- Screens, of which the following is a specication.

The object of my invention is to provide a window-screen adapted to be fastened to the window-sash, so as to brought into use when the window is raisedand to be automatically coiled upon a roller when the window is closed.

The invention consists in certain details of construction and arrangements, the features of which are more fully set forth in the description of the accompanying drawings, making a part of this specification, in which- Figure l is an inside plan view of the window with my screen attached thereto. Fig. 2 is an enlarged section through the same. Fig. 3 is a detail view of one of the screenways. Fig. l is a detail view of one of the edges of the screen. Fig. 5 is a central vertical section through the roller and casing.

A represents the lower window-sash; B, the window-frame; C, the screen; D, the screenroller housing. The screen is secured to the window-sash by means of buttons a, passing through slots in a metallic binding-strip b, securedL to the top of the screen, so that the screen may be readily detached from the window-sash, if desired.

E represents a roller which is spring-controlled upon which the surplus screen is wound.

e represents the actuating-spring.

e represents a mandrel.

F represents a ratchet-wheel 5 f, a pawl piv oted in the upper part of the housing engaging with the ratchet-wheel and by means of which the tension on the screen is regulated.

g represents holes for the insertion of a key for adjusting the tension.

D represents a wooden housing for the screen and roller, which is held in position "on the window-sill by bracketsV d, which also serve as supports for the roller;

G represents metallic grooved ways secured to each side of the window-frame and serving as ways for the side edges of the screen. The inner portion of the groove is of enlarged area to receive and engage a series of balls H, secured upon the side edge of the screen C. It will thus be seen that the screen is securely locked in position upon each side of the window, the balls traveling in the enlarged portion of the grooves and the narrower portion receiving the sides of the screen. `The lower ends of the grooved ways are turned outward at the bottom and serve as a guide h to hold the housing D in position. The housing D may thus be drawn out horizontally either to readj ust the tension or to remove the screen entirely from the window, if desired.

One of the advantages of my form of construction is that the parts of my screen may be readily applied to any window or removed therefrom without any alteration of the window frame or sash.

Having described my invention, I claim- The combination with a window-frame, and the lower sash, of a spring-controlled roller having a housing D removably supported on the window-sill, a screen C having its lower end attached to said roller and its upper end detachably secured to the lower portion of the sash, balls H secured to the side edges of said screen, and the grooved ways G secured to the sides of the window-frame and provided at their lower ends with outward -turned guides 7?. to hold the housing D in position, and the inner portions of said grooved ways G being enlarged to receive the balls H on the side edges of the screen, substantially as described.

In testimony whereof I have hereunto set my hand.

ELMER n. MoNEoE.

' Witnesses:

CHAs. H. HEss, J. W. NEWMAN. 

